Home / 309,642,758.10-464,464,137.15-187,198,751.70

Finding the Fourth Proportional to 309,642,758.10, 464,464,137.15 and 187,198,751.70

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Solution

The fourth proportional to 309,642,758.10, 464,464,137.15 and 187,198,751.70 is: 280,798,127.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,642,758.10 : 464,464,137.15 = 187,198,751.70 : x
  2. Step 2: Convert to fraction form
    309,642,758.10/464,464,137.15 = 187,198,751.70/x
  3. Step 3: Cross multiply
    309,642,758.10x = 464,464,137.15 × 187,198,751.70
  4. Step 4: Simplify right side
    309,642,758.10x = 86,947,106,683,897,584
  5. Step 5: Solve for x
    x = 86,947,106,683,897,584/309,642,758.10
  6. Step 6: Final answer
    x = 280,798,127.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.